Fairness in Radio Resource Management for Wireless Networks
EURASIP Journal on Wireless Communications and Networking
Radio resource management (RRM) techniques such as admission control, scheduling, subcarrier allocation, channel assignment, power allocation, and rate control are essential for maximizing the resource utilization and providing quality of service (QoS) in wireless networks. In many cases, the performance metrics (e.g., overall throughput) can be optimized if opportunistic algorithms are employed. However, opportunistic RRM techniques always favor advantaged users who have good channel
... and/or low interference levels. The problem becomes even worse when the wireless terminals have low mobility since the channel conditions become slowly varying (or even static), which might lead to long-term unfairness. The problem of fair resource allocation is more challenging in multihop wireless networks (e.g., wireless mesh networks and multihop cellular networks). This special issue addresses some fairness issues and solutions in using RRM techniques in modern wireless communication systems. We received an overwhelming response to our call for paper of this special issue. From the large number of high quality submissions we received, we have selected sixteen papers grouped in six subtopics, namely, (1) fairness of RRM in WiMAX networks, (2) fairness of RRM in OFDM/OFDMA systems, (3) fairness of RRM in CDMA/UMTS systems, (4) fairness of RRM in MIMO systems, (5) fairness of RRM in multihop and mesh networks, and finally (6) fairness of multiuser resource allocation. In the first group, three papers address the fair resource management in WiMAX networks.